Perhaps you should try some spelling variations:
wang yiqian » wang yidan
yiqian wang » yijiang wang, liqin wang, qian wang
china zhang » cheng zhang, chin chang, china han
china chang » chin chang, china changqi, china china
minh zhang » bin zhang, binh thang, anming zhang
zhang zhi » zhong zhi, wang zhi, zhang wei

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: wang yiqian wang hua ((china zhang) or (china chang)) minh zhang zhi ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: wang yiqian wang hua ((china zhang) OR (china chang)) minh zhang zhi ;.
• Adding a wildcard symbol may retrieve word variants: wang yiqian wang hua ((china zhang) or (china chang)) minh zhang zhi ;*.